package com.kejizhentan.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.kejizhentan.common.exception.YyghException;
import com.kejizhentan.common.result.ResultCodeEnum;
import com.kejizhentan.mapper.ScheduleMapper;
import com.kejizhentan.repository.ScheduleRepository;
import com.kejizhentan.service.DepartmentService;
import com.kejizhentan.service.HospitalService;
import com.kejizhentan.service.ScheduleService;
import com.kejizhentan.yygh.model.hosp.BookingRule;
import com.kejizhentan.yygh.model.hosp.Department;
import com.kejizhentan.yygh.model.hosp.Hospital;
import com.kejizhentan.yygh.model.hosp.Schedule;
import com.kejizhentan.yygh.vo.hosp.BookingScheduleRuleVo;
import com.kejizhentan.yygh.vo.hosp.ScheduleOrderVo;
import com.kejizhentan.yygh.vo.hosp.ScheduleQueryVo;
import org.joda.time.DateTime;
import org.joda.time.DateTimeConstants;
import org.joda.time.format.DateTimeFormat;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.*;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.aggregation.Aggregation;
import org.springframework.data.mongodb.core.aggregation.AggregationResults;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.stereotype.Service;
import org.springframework.util.CollectionUtils;
import org.springframework.util.ObjectUtils;

import java.util.*;
import java.util.stream.Collectors;

/**
 * @Author shikaifeng
 * @Date 2022/9/28 21:20
 * @Version 1.0
 */
@Service
public class ScheduleServiceImpl extends ServiceImpl<ScheduleMapper, Schedule> implements ScheduleService {

    @Autowired
    private ScheduleRepository scheduleRepository;

    @Autowired
    private MongoTemplate mongoTemplate;

    @Autowired
    private HospitalService hospitalService;

    @Autowired
    private DepartmentService departmentService;

    @Override
    public void remove(String hoscode, String hosScheduleId) {
        Schedule schedule = scheduleRepository.getScheduleByHoscodeAndHosScheduleId(hoscode, hosScheduleId);
        if (!ObjectUtils.isEmpty(schedule)) {
            scheduleRepository.deleteById(schedule.getId());
        }
    }

    @Override
    public Page<Schedule> findPageSchedule(int page, int limit, ScheduleQueryVo scheduleQueryVo) {
        // 创建 Pageable对象，设置当前页和每页记录数（0是第一页）
        Pageable pageable = PageRequest.of(page - 1, limit);
        // 创建 Example 对象
        ExampleMatcher matcher = ExampleMatcher
                .matching()
                .withStringMatcher(ExampleMatcher.StringMatcher.CONTAINING)
                .withIgnoreCase(true);

        Schedule schedule = new Schedule();
        BeanUtils.copyProperties(scheduleQueryVo, schedule);
        schedule.setIsDeleted(0);
        schedule.setStatus(1);

        Example<Schedule> example = Example.of(schedule, matcher);
        return scheduleRepository.findAll(example, pageable);
    }

    @Override
    public void save(Map<String, Object> paramMap) {
        // paramMap 转成 Schedule 对象
        String paramMapString = JSONObject.toJSONString(paramMap);
        Schedule schedule = JSONObject.parseObject(paramMapString, Schedule.class);
        // 根据医院编号和排班编号查询
        Schedule scheduleExist = scheduleRepository
                .getScheduleByHoscodeAndHosScheduleId(schedule.getHoscode(), schedule.getHosScheduleId());
        if (!ObjectUtils.isEmpty(scheduleExist)) {
            scheduleExist.setUpdateTime(new Date());
            scheduleExist.setIsDeleted(0);
            scheduleExist.setStatus(1);
            scheduleRepository.save(scheduleExist);
        } else {
            schedule.setCreateTime(new Date());
            schedule.setUpdateTime(new Date());
            schedule.setIsDeleted(0);
            schedule.setStatus(1);
            scheduleRepository.save(schedule);
        }
    }

    @Override
    public Map<String, Object> getScheduleRule(Integer page, Integer limit, String hoscode, String depcode) {
        // 根据医院编号和科室编号进行查询
        Criteria criteria = Criteria
                .where("hoscode").is(hoscode)
                .and("depcode").is(depcode);
        // 根据工作日期 workDate 进行分组
        Aggregation agg = Aggregation.newAggregation(
                Aggregation.match(criteria),// 匹配条件
                Aggregation.group("workDate") // 分组字段
                        .first("workDate").as("workDate")
                        .count().as("docCount") // 统计号源数量
                        .sum("reservedNumber").as("reservedNumber")
                        .sum("availableNumber").as("availableNumber"),
                // 排序
                Aggregation.sort(Sort.Direction.DESC, "workDate"),
                // 实现分页
                Aggregation.skip((page - 1) * limit),
                Aggregation.limit(limit)
        );
        // 调用方法 最终执行
        AggregationResults<BookingScheduleRuleVo> aggResult =
                mongoTemplate.aggregate(agg, Schedule.class, BookingScheduleRuleVo.class);
        List<BookingScheduleRuleVo> bookingScheduleRuleVoList = aggResult.getMappedResults();

        // 分组查询的总记录数
        Aggregation totalAgg = Aggregation.newAggregation(
                Aggregation.match(criteria),
                Aggregation.group("workDate")
        );
        AggregationResults<BookingScheduleRuleVo> totalAggResult =
                mongoTemplate.aggregate(totalAgg, Schedule.class, BookingScheduleRuleVo.class);
        int total = totalAggResult.getMappedResults().size();

        // 把日期对应星期获取
        for (BookingScheduleRuleVo bookingScheduleRuleVo : bookingScheduleRuleVoList) {
            Date workDate = bookingScheduleRuleVo.getWorkDate();
            String dayOfWeek = this.getDayOfWeek(new DateTime(workDate));
            bookingScheduleRuleVo.setDayOfWeek(dayOfWeek);
        }

        // 设置最终数据 进行返回
        Map<String, Object> result = new HashMap<>();
        result.put("bookingScheduleRuleList", bookingScheduleRuleVoList);
        result.put("total", total);

        // 其他基础数据
        Map<String, String> baseMap = new HashMap<>();
        // 获取医院名称
        baseMap.put("hosname", hospitalService.getHospName(hoscode));
        result.put("baseMap", baseMap);

        return result;
    }

    /**
     * 根据日期获取周几数据
     *
     * @param dateTime
     * @return
     */
    private String getDayOfWeek(DateTime dateTime) {
        String dayOfWeek = "";
        switch (dateTime.getDayOfWeek()) {
            case DateTimeConstants.SUNDAY:
                dayOfWeek = "周日";
                break;
            case DateTimeConstants.MONDAY:
                dayOfWeek = "周一";
                break;
            case DateTimeConstants.TUESDAY:
                dayOfWeek = "周二";
                break;
            case DateTimeConstants.WEDNESDAY:
                dayOfWeek = "周三";
                break;
            case DateTimeConstants.THURSDAY:
                dayOfWeek = "周四";
                break;
            case DateTimeConstants.FRIDAY:
                dayOfWeek = "周五";
                break;
            case DateTimeConstants.SATURDAY:
                dayOfWeek = "周六";
            default:
                break;
        }
        return dayOfWeek;
    }

    @Override
    public List<Schedule> getScheduleDetail(String hoscode, String depcode, String workDate) {
        // 根据参数查询mongodb
        List<Schedule> scheduleList =
                scheduleRepository.findScheduleByHoscodeAndDepcodeAndWorkDate(hoscode, depcode, new DateTime(workDate).toDate());
        // 把得到list集合遍历，向设置其他值：医院名称、科室名称、日期对应星期
        scheduleList.forEach(this::packageSchedule);
        return scheduleList;
    }


    //封装排班详情其他值 医院名称、科室名称、日期对应星期
    private Schedule packageSchedule(Schedule schedule) {
        // 设置医院名称
        schedule.getParam().put("hosname", hospitalService.getHospName(schedule.getHoscode()));
        // 设置科室名称
        schedule.getParam().put("depname", departmentService.getDepName(schedule.getHoscode(), schedule.getDepcode()));
        // 设置日期对应星期
        schedule.getParam().put("dayOfWeek", this.getDayOfWeek(new DateTime(schedule.getWorkDate())));
        return schedule;
    }

    @Override
    public Map<String, Object> getBookingScheduleRule(Integer page, Integer limit, String hoscode, String depcode) {
        Map<String, Object> result = new HashMap<>();
        // 获取预约规则
        Hospital hospital = hospitalService.getByHosCode(hoscode);
        if (ObjectUtils.isEmpty(hospital)) {
            throw new YyghException(ResultCodeEnum.DATA_ERROR);
        }
        BookingRule bookingRule = hospital.getBookingRule();
        // 获取可预约日期分页数据
        IPage iPage = this.getListDate(page, limit, bookingRule);
        // 获取当前可预约日期
        List<Date> dateList = iPage.getRecords();

        // 获取可预约日期科室的剩余预约数
        Criteria criteria = Criteria
                .where("hoscode").is(hoscode)
                .and("depcode").is(depcode)
                .and("workDate").in(dateList);
        Aggregation agg = Aggregation.newAggregation(
                Aggregation.match(criteria),
                Aggregation.group("workDate").first("workDate").as("workDate")
                        .count().as("docCount")
                        .sum("availableNumber").as("availableNumber")
                        .sum("reservedNumber").as("reservedNumber")
        );
        AggregationResults<BookingScheduleRuleVo> aggregateResult =
                mongoTemplate.aggregate(agg, Schedule.class, BookingScheduleRuleVo.class);
        List<BookingScheduleRuleVo> scheduleVoList = aggregateResult.getMappedResults();

        // 合并数据 map集合 key = 日期 value = 预约规则/剩余数量
        Map<Date, BookingScheduleRuleVo> scheduleVoMap = new HashMap<>();
        if (!CollectionUtils.isEmpty(scheduleVoList)) {
            scheduleVoMap = scheduleVoList.stream()
                    .collect(Collectors
                            .toMap(BookingScheduleRuleVo::getWorkDate,
                                    BookingScheduleRuleVo -> BookingScheduleRuleVo));
        }

        // 获取课预约排班规则
        List<BookingScheduleRuleVo> bookingScheduleRuleVoList = new ArrayList<>();
        for (int i = 0, len = dateList.size(); i < len; i++) {
            Date date = dateList.get(i);
            // 从 map 集合中根据 key 日期获取 value
            BookingScheduleRuleVo bookingScheduleRuleVo = scheduleVoMap.get(date);
            // 如果当天没有排班医生 做相关设置
            if (ObjectUtils.isEmpty(bookingScheduleRuleVo)) {
                bookingScheduleRuleVo = new BookingScheduleRuleVo();
                // 就诊医生人数
                bookingScheduleRuleVo.setDocCount(0);
                // 科室剩余预约数 -1表示无号
                bookingScheduleRuleVo.setAvailableNumber(-1);
            }
            bookingScheduleRuleVo.setWorkDate(date);
            bookingScheduleRuleVo.setWorkDateMd(date);
            // 计算当前预约日期为周几
            String dayOfWeek = this.getDayOfWeek(new DateTime(date));
            bookingScheduleRuleVo.setDayOfWeek(dayOfWeek);
            // 最后一页最后一条记录为即将预约  状态 0：正常 1：即将放号 -1：当天已停止挂号
            if (i == len - 1 && page == iPage.getPages()) {
                bookingScheduleRuleVo.setStatus(1);
            } else {
                bookingScheduleRuleVo.setStatus(0);
            }
            //当天预约如果过了停号时间， 不能预约
            if (i == 0 && page == 1) {
                DateTime stopTime = this.getDateTime(new Date(), bookingRule.getStopTime());
                if (stopTime.isBeforeNow()) {
                    //停止预约
                    bookingScheduleRuleVo.setStatus(-1);
                }
            }
            bookingScheduleRuleVoList.add(bookingScheduleRuleVo);
        }

        // 可预约日期规则数据
        result.put("bookingScheduleList", bookingScheduleRuleVoList);
        result.put("total", iPage.getTotal());
        // 其他基础数据
        Map<String, String> baseMap = new HashMap<>();
        // 医院名称
        baseMap.put("hosname", hospitalService.getHospName(hoscode));
        // 科室
        Department department = departmentService.getDepartment(hoscode, depcode);
        // 大科室名称
        baseMap.put("bigname", department.getBigname());
        // 科室名称
        baseMap.put("depname", department.getDepname());
        // 月
        baseMap.put("workDateString", new DateTime().toString("yyyy年MM月"));
        // 放号时间
        baseMap.put("releaseTime", bookingRule.getReleaseTime());
        // 停号时间
        baseMap.put("stopTime", bookingRule.getStopTime());
        result.put("baseMap", baseMap);

        return result;
    }

    // 获取可预约日期分页数据
    private IPage<Date> getListDate(int page, int limit, BookingRule bookingRule) {
        // 当天放号时间
        DateTime releaseTime = this.getDateTime(new Date(), bookingRule.getReleaseTime());
        // 预约周期
        Integer cycle = bookingRule.getCycle();
        // 如果当天放号时间已过，则预约周期后一天为即将放号时间，周期加1
        if (releaseTime.isBeforeNow()) cycle += 1;
        // 可预约所有日期，最后一天显示即将放号倒计时
        List<Date> dateList = new ArrayList<>();
        for (int i = 0; i < cycle; i++) {
            // 计算当前预约日期
            DateTime curDateTime = new DateTime().plusDays(i);
            String dateString = curDateTime.toString("yyyy-MM-dd");
            dateList.add(new DateTime(dateString).toDate());
        }
        // 日期分页，由于预约周期不一样，页面一排最多显示7天数据，多了就要分页显示
        List<Date> pageDateList = new ArrayList<>();
        int start = (page - 1) * limit;
        int end = (page - 1) * limit + limit;
        if (end > dateList.size()) end = dateList.size();
        for (int i = start; i < end; i++) {
            pageDateList.add(dateList.get(i));
        }
        IPage<Date> iPage = new
                com.baomidou.mybatisplus.extension.plugins.pagination.Page<>(page, 7, dateList.size());
        iPage.setRecords(pageDateList);
        return iPage;
    }


    // 将Date日期（yyyy-MM-dd HH:mm）转换为DateTime
    private DateTime getDateTime(Date date, String timeString) {
        String dateTimeString = new DateTime(date).toString("yyyy-MM-dd") + " " + timeString;
        return DateTimeFormat.forPattern("yyyy-MM-dd HH:mm").parseDateTime(dateTimeString);
    }

    @Override
    public Schedule getById(String scheduleId) {
        return this.packageSchedule(scheduleRepository.findById(scheduleId).get());
    }

    // 根据排班id获取预约下单数据
    @Override
    public ScheduleOrderVo getScheduleOrderVo(String scheduleId) {
        //获取排班信息
        Schedule schedule = this.getScheduleId(scheduleId);
        //Schedule schedule = baseMapper.selectById(scheduleId);
        if (ObjectUtils.isEmpty(schedule)) {
            throw new YyghException(ResultCodeEnum.PARAM_ERROR);
        }
        // 获取预约规则信息
        Hospital hospital = hospitalService.getByHosCode(schedule.getHoscode());
        if (ObjectUtils.isEmpty(hospital)) {
            throw new YyghException(ResultCodeEnum.DATA_ERROR);
        }
        BookingRule bookingRule = hospital.getBookingRule();
        if (ObjectUtils.isEmpty(bookingRule)) {
            throw new YyghException(ResultCodeEnum.PARAM_ERROR);
        }
        // 退号截止天数（如：就诊前一天为-1，当天为0）
        Integer quitDay = bookingRule.getQuitDay();
        DateTime quitTime =
                this.getDateTime(new DateTime(schedule.getWorkDate()).plusDays(quitDay).toDate(), bookingRule.getQuitTime());
        // 预约开始时间
        DateTime startTime =
                this.getDateTime(new Date(), bookingRule.getReleaseTime());
        // 预约截止时间
        DateTime endTime =
                this.getDateTime(new DateTime().plusDays(bookingRule.getCycle()).toDate(), bookingRule.getStopTime());
        // 当天停止挂号时间
        DateTime stopTime = this.getDateTime(new Date(), bookingRule.getStopTime());

        return ScheduleOrderVo.builder()
                .hoscode(schedule.getHoscode())
                .hosname(hospitalService.getHospName(schedule.getHoscode()))
                .depcode(schedule.getDepcode())
                .depname(departmentService.getDepName(schedule.getHoscode(), schedule.getDepcode()))
                .hosScheduleId(schedule.getHosScheduleId())
                .availableNumber(schedule.getAvailableNumber())
                .title(schedule.getTitle())
                .reserveDate(schedule.getWorkDate())
                .reserveTime(schedule.getWorkTime())
                .amount(schedule.getAmount())
                .quitTime(quitTime.toDate())
                .startTime(startTime.toDate())
                .endTime(endTime.toDate())
                .stopTime(stopTime.toDate())
                .build();
    }

    @Override
    public void update(Schedule schedule) {
        schedule.setUpdateTime(new Date());
        scheduleRepository.save(schedule);
    }

    @Override
    public Schedule getScheduleId(String scheduleId) {
        return scheduleRepository.findById(scheduleId).get();
    }
}
